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| author | Alan Modra <amodra@gmail.com> | 2020-08-28 23:09:29 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2020-08-28 23:15:21 +0930 |
| commit | ed2ed4dcf4ae20b9a7c38ffdf379fef383c6b8f9 (patch) | |
| tree | dd235290b046f6b8a2011cdc80936591df16da75 | |
| parent | 07319accdf8eecc5111b343802dadd067f683d26 (diff) | |
| download | gdb-ed2ed4dcf4ae20b9a7c38ffdf379fef383c6b8f9.zip gdb-ed2ed4dcf4ae20b9a7c38ffdf379fef383c6b8f9.tar.gz gdb-ed2ed4dcf4ae20b9a7c38ffdf379fef383c6b8f9.tar.bz2 | |
PR26460 UBSAN: tc-ia64.c:6107 index out of bounds
PR 26460
* config/tc-ia64.c (parse_operands): Don't access past end of
idesc->operands.
| -rw-r--r-- | gas/ChangeLog | 6 | ||||
| -rw-r--r-- | gas/config/tc-ia64.c | 6 |
2 files changed, 10 insertions, 2 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index 63d1596..9bdbb4b 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,9 @@ +2020-08-28 Alan Modra <amodra@gmail.com> + + PR 26460 + * config/tc-ia64.c (parse_operands): Don't access past end of + idesc->operands. + 2020-08-26 Mark Wielaard <mark@klomp.org> * as.c (parse_args): Handle bad -gdwarf options. diff --git a/gas/config/tc-ia64.c b/gas/config/tc-ia64.c index f827e45..0e60416 100644 --- a/gas/config/tc-ia64.c +++ b/gas/config/tc-ia64.c @@ -6098,8 +6098,10 @@ parse_operands (struct ia64_opcode *idesc) { if (i < NELEMS (CURR_SLOT.opnd)) { - sep = parse_operand_maybe_eval (CURR_SLOT.opnd + i, '=', - idesc->operands[i]); + enum ia64_opnd op = IA64_OPND_NIL; + if (i < NELEMS (idesc->operands)) + op = idesc->operands[i]; + sep = parse_operand_maybe_eval (CURR_SLOT.opnd + i, '=', op); if (CURR_SLOT.opnd[i].X_op == O_absent) break; } |